Operation Analysis of round,pow,sqrt,abs instance of JavaScript Math function

This article mainly introduces "round,pow,sqrt,abs instance operation analysis of JavaScript Math function". In daily operation, I believe that many people have doubts about the operation analysis of round,pow,sqrt,abs instance of JavaScript Math function. The editor has consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts of "round,pow,sqrt,abs instance operation analysis of JavaScript Math function". Next, please follow the editor to study!

The JavaScript Math object allows you to perform mathematical tasks on numbers.

Example

Math.PI; / / returns 3.141592653589793

Math.round ()

The return value of Math.round (x) is x rounded to the nearest integer:

Example

Math.round (6.8); / / returns 7

Math.round (2.3); / / return 2

Math.pow ()

The return value of Math.pow (x, y) is the y power of x:

Example

Math.pow (8, 2); / / return 64

Math.sqrt ()

Math.sqrt (x) returns the square root of x:

Example

Math.sqrt (64); / / returns 8

Math.abs ()

Math.abs (x) returns the absolute (positive) value of x:

Example

Math.abs (- 4.7); / / returns 4.7

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